257385257728

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{1217}}^1\times {\mathrm{43481}}^1$

素因数の和:44733

約数の個数: 72

約数和(自身を含む): 541262196720

約数和(自身を除く): 283876938992

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 1217, 2432, 2434, 4864, 4868, 9736, 19472, 23123, 38944, 43481, 46246, 77888, 86962, 92492, 155776, 173924, 184984, 311552, 347848, 369968, 695696, 739936, 826139, 1391392, 1479872, 1652278, 2782784, 2959744, 3304556, 5565568, 5919488, 6609112, 11131136, 13218224, 26436448, 52872896, 52916377, 105745792, 105832754, 211491584, 211665508, 423331016, 846662032, 1005411163, 1693324064, 2010822326, 3386648128, 4021644652, 6773296256, 8043289304, 13546592512, 16086578608, 32173157216, 64346314432, 128692628864, 257385257728]

約数ペア:

[(1, 257385257728), (2, 128692628864), (4, 64346314432), (8, 32173157216), (16, 16086578608), (19, 13546592512), (32, 8043289304), (38, 6773296256), (64, 4021644652), (76, 3386648128), (128, 2010822326), (152, 1693324064), (256, 1005411163), (304, 846662032), (608, 423331016), (1216, 211665508), (1217, 211491584), (2432, 105832754), (2434, 105745792), (4864, 52916377), (4868, 52872896), (9736, 26436448), (19472, 13218224), (23123, 11131136), (38944, 6609112), (43481, 5919488), (46246, 5565568), (77888, 3304556), (86962, 2959744), (92492, 2782784), (155776, 1652278), (173924, 1479872), (184984, 1391392), (311552, 826139), (347848, 739936), (369968, 695696)]